x01aaf (PDF version)
X01 (math) Chapter Contents
X01 (math) Chapter Introduction
NAG Library Manual
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NAG Library Routine Document
x01aaf (pi)
▸
▿
Contents
1
Purpose
2
Specification
3
Description
4
References
5
Arguments
6
Error Indicators and Warnings
7
Accuracy
8
Parallelism and Performance
9
Further Comments
10
Example
1
Purpose
x01aaf
returns the numerical value of
π
.
2
Specification
Fortran Interface
Function x01aaf (
x
)
Real (Kind=nag_wp)
::
x01aaf
Real (Kind=nag_wp), Intent (In)
::
x
C Header Interface
#include nagmk26.h
double
x01aaf_ (
double *
x
)
3
Description
None.
4
References
None.
5
Arguments
1:
x
– Real (Kind=nag_wp)
Dummy
6
Error Indicators and Warnings
None.
7
Accuracy
The result should be correct to
machine precision
(see
Chapter X02
).
8
Parallelism and Performance
x01aaf
is not threaded in any implementation.
9
Further Comments
None.
10
Example
None.
x01aaf (PDF version)
X01 (math) Chapter Contents
X01 (math) Chapter Introduction
NAG Library Manual
© The Numerical Algorithms Group Ltd, Oxford, UK. 2017